Texas Instruments

LM2940IMPX-10  

Linear & Switching Voltage Regulators

LM2940IMPX-10 Description

The LM2940IMPX-10 is a fixed output linear voltage regulator designed by Texas Instruments. This regulator is part of the Linear & Switching Voltage Regulators category and is housed in a Surface Mount SOT223-4 package. It is designed to provide a stable 10V output with a maximum output current of 1A. The regulator operates efficiently within an input voltage range up to 26V and features a low dropout voltage of 1V at full load, making it suitable for applications where input voltage may vary significantly.

LM2940IMPX-10 Features

The LM2940IMPX-10 offers several key features that enhance its performance and reliability:

• Fixed Output Voltage: Provides a stable 10V output, ensuring consistent power supply to connected devices.
• High Input Voltage Range: Capable of handling input voltages up to 26V, offering flexibility in diverse power supply scenarios.
• Low Dropout Voltage: With a maximum dropout voltage of 1V at 1A, it maintains efficiency even when input voltage is close to the output voltage.
• Protection Features: Includes over current, over temperature, reverse polarity, and short circuit protection, safeguarding both the regulator and connected circuits.
• Low Quiescent Current: Consumes only 10 mA in quiescent state, minimizing power loss and enhancing overall system efficiency.
• High Power Supply Rejection Ratio (PSRR): Achieves 63dB at 120Hz, effectively filtering out noise and ripple from the input power supply.
• Moisture Sensitivity Level: MSL 1 (Unlimited), ensuring robustness in various environmental conditions.
• Mounting Type: Surface Mount, facilitating compact and reliable integration into PCB designs.
• Packaging: Available in Tape & Reel (TR) packaging, suitable for automated assembly processes.

LM2904IMPX-10 Applications

The LM2940IMPX-10 is well-suited for a variety of applications due to its robust design and versatile features:

• Power Supply Circuits: Ideal for providing stable power to microcontrollers, sensors, and other low-power electronics.
• Battery-Powered Devices: Its low dropout voltage makes it suitable for applications where battery voltage drops as it discharges.
• Automotive Electronics: Can handle the wide voltage swings and transient conditions often found in automotive environments.
• Industrial Equipment: Provides reliable power in industrial settings where robustness and protection features are critical.
• Consumer Electronics: Suitable for devices requiring a stable 10V supply, such as portable chargers and small appliances.

Conclusion of LM2940IMPX-10

The LM2940IMPX-10 is a versatile and reliable linear voltage regulator that offers a stable 10V output with a maximum current of 1A. Its low dropout voltage, comprehensive protection features, and high PSRR make it an excellent choice for a wide range of applications, from automotive electronics to consumer devices. Despite being marked as obsolete, its robust design and performance benefits continue to it make a valuable component for engineers and designers seeking a reliable power solution.

LM2940IMPX-10 Documents

Download datasheets and manufacturer documentation for LM2940IMPX-10

Datasheets :

LM2940(-N, C)      

HTML Datasheet :

LM2940(-N, C)